As online entertainment evolves, audiences increasingly expect interactive experiences, leading to new engagement and revenue opportunities. The integration of a second screen, typically on mobile devices, enhances viewer interaction through features such as live chat, gamification, score-based incentives, in-the-moment giveaways, personalized achievements, and shopping promotions. Platforms like Twitch, YouTube, and Instagram, as well as companies like DAZN, LiveLike, and Veeps, utilize these features to boost engagement. PubNub provides the technical infrastructure for these interactive experiences, offering tools like Publish/Subscribe messaging, App Context for metadata management, and Illuminate for real-time analytics and decision-making. This interactive approach not only enhances user experience but also offers monetization potential through features like betting, rewards, and promotions, encouraging viewer retention and increasing platform revenue.